Work tool equipped with gripping and suction functions for objects

Work tool with object gripping and suction capabilities

This technology is a manipulator work tool mechanism that adjusts the spacing between a pair of grippers via a rack-and-pinion drive and incorporates suction cups at the base of the grippers to perform both gripping and suction tasks simultaneously.

Conventional technologies faced inefficiencies due to the need for tool changes when performing only gripping or suction, as well as backlash issues caused by reaction forces between the grippers and rack gears during gripping.

This technology inserts ring-shaped cushioning members between the grippers and the rack gear mounting bolts to absorb physical reaction forces. By applying a rack-and-pinion drive system, it allows for suction cup spacing adjustments based on part size and enables combined gripping and suction operations. Applicable to logistics picking, service robots, and manufacturing automation, it enables the handling of objects with irregular shapes and reduces the need for tool changes, thereby improving the efficiency and stability of pick-and-place operations.

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Key Features:

• Cushioning member positioned between the pair of grippers and the drive unit to absorb reaction forces generated during object gripping
• A pair of grippers with suction cups mounted at one end, extending vertically from that end
• Drive unit coupled to the pair of grippers that adjusts the spacing between them to grip objects
• A pair of rack gears that mesh with a pinion gear and move laterally via rotational force

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This invention was developed with support from the Ministry of Knowledge Economy for the development of safety modules with a maximum output range of 150Nm and force-torque/joint sensor technology for dual-arm working robots.